- Changed folder for compatibility routines from xerces/compat to lib
- Added /GX to the compiler switches of MSVC when used on Cygwin
- If the platform uses the Windows SDK, detect if it requires XMLCh to be defined as wchar_t

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@454355 13f79535-47bb-0310-9956-ffa450edef68